메뉴 건너뛰기

Journals

77.

?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 댓글로 가기 첨부

"Emission analysis of Tb3+-and Sm3+-ion-doped alkali-oxide-modified borosilicate glasses", B. Naveen Kumar Reddy, S. Sailaja, K. Thyagarajan,Young Dahl Jho*, and .B.S. Reddy*, Luminescence: The Journal of Biological and Chemical Luminescence, bio3437, 1-9 (2017).

 

Abstract

Four series of borosilicate glasses modified by alkali oxides and doped with Tb3+ and Sm3+ ions were prepared using the conventional melt quenching technique, with the chemical composition 74.5B2O3 + 10SiO2 + 5MgO + R + 0.5(Tb2O3/Sm2O3) [where R = 10(Li2O /Na2O/K2O) for series A and C, and R = 5(Li2O + Na2O/Li2O + K2O/K2O + Na2O) for series B and D]. The X‐ray diffraction (XRD) patterns of all the prepared glasses indicate their amorphous nature. The spectroscopic properties of the prepared glasses were studied by optical absorption analysis, photoluminescence excitation (PLE) and photoluminescence (PL) analysis. A green emission corresponding to the 5D4 → 7F5(543 nm) transition of the Tb3+ ions was registered under excitation at 379 nm for series A and B glasses. The emission spectra of the Sm3+ ions with the series C and D glasses showed strong reddish‐orange emission at 600 nm (4G5/2 →6H7/2) with an excitation wavelength λexci = 404 nm (6H5/24F7/2). Furthermore, the change in the luminescence intensity with the addition of an alkali oxide and combinations of these alkali oxides to borosilicate glasses doped with Tb3+ and Sm3+ ions was studied to optimize the potential alkali‐oxide‐modified borosilicate glass.


  1. 48.

    "Identifying the Distinct Phases of THz Waves from K-valley Electrons in Graphite ", Muhammad Irfan, Jong-Hyuk Yim, Changyoung Kim, Young-Dahl Jho, AIP Conf. Proc. 1566, 121 (2013).
    Category2013
    Read More
  2. 47.

    "Effect of indium composition on carrier escape in InGaN/GaN MQW solar cells", Sang-Bae Choi, Jae-Phil Shim, Dong-Min Kim,Hoon-Il Jeong,Young-Dahl Jho,Young-Ho Song,and Dong-Seon Lee, Appl. Phys. Lett. 103, 033901 (2013).
    Category2013
    Read More
  3. 46.

    "Optical properties of Sm3+-doped Cdmium Bismuth Borate glasses", S. Sailaja, C. Nageswara Raju, C. Adinarayana Reddy, B. D. P. Raju, Y. D. Jho, and B. S. Reddy, Journal of Molecular Structure 129, 1314-1319 (2013).
    Category2013
    Read More
  4. 45.

    "Nexus between directionality of terahertz waves and structural parameters in groove-patterned InAs", Jong-Hyuk Yim, Kyunggu Min, Hoonil Jeong, Jin-Dong Song, and Young-Dahl Jho, J. Appl. Phys. 113. 136505 (2013).
    Category2013
    Read More
  5. 44.

    "(invited review article)Generation of Superfluorescent Bursts from a Fully Tunable Semiconductor Magneto-Plasma", Timothy Noe II, Ji-Hee Kim, Jinho Lee, Young-Dahl Jho, Yongrui Wang, Aleksander K. W´ojcik, Stephen A. McGill, David H. Reitze, Alexey A. Belyanin, and Junichiro Kono, Fortschr. Phys. 61, 393-403 (2013).
    Category2013
    Read More
  6. 43.

    "Control of coherent acoustic phonon generation with external bias in InGaN/GaN multiple quantum wells", C. S. Kim, J. H. Kim, H. Jeong, Y. D. Jho, H. K. Kwon, H. S. Lee, J. S. Park, K.Song, S. H. Kim, Y. J. Kim, D. Lee, and K. J. Yee, Appl. Phys. Lett. 100, 101105 (2012).
    Category2012
    Read More
  7. 42.

    "Electron paramagnetic resonance and photoluminescence properties of alpha-Al2O3:Cr3+ phosphors", V. Singh · R.P.S. Chakradhar · J.L. Rao ·K. Al-Shamery · M. Haase and Y.-D. Jho, Appl. Phys. B 107, 489 (2012).
    Category2012
    Read More
  8. 41.

    "Synthesis, characterization, luminescence and defect centres in solution combustion synthesized CaZrO3:Tb3+ ", Vijay Singh,S. Watanabe , T. K. Gundu Rao , Katharina Al-Shamery, Markus Haase, and Young-Dahl Jho, Journal of Luminescence, 132, 2036 (2012).
    Category2012
    Read More
  9. 40.

    "EPR and photoluminescence properties of green light emitting LaAl11O18:Mn2þ phosphors", Vijay Singh, R.P.S.Chakradhar, J.L.Rao, and Young-Dahl Jho, Physica B 407, 2289 (2012).
    Category2012
    Read More
  10. 39.

    "Synthesis, characterization, optical absorption, luminescence and defect centres in Er3+ and Yb3+ co-doped MgAl2O4 phosphors" V. Singh , V. Kumar Rai , S. Watanabe , T.K. Gundu Rao,· L. Badie, I. Ledoux-Rak , and Y.-D. Jho, Applied Physics B: Lasers and Optics 108 (2) , 437 (2012).
    Category2012
    Read More
  11. 38.

    "Excitonic diffusion dynamics in ZnO", Hoonil Jeong, K. Min, Sangwook Byun, D.H. Reitze, C.J. Stanton, Jinkyoung Yoo, Gyu-Chul Yi, and Young-Dahl Jho, Appl Phys. Lett. 100, 092106 (2012).
    Category2012
    Read More
  12. 37.

    "Relationship between phase and generation mechanisms of THz waves in InAs", H. Jeong, S.H. Shin, S.Y. Kim, J.D. Song, S.B. Choi, D.S. Lee, J. Lee, and Y.D. Jho, Current Applied Physics, 12, 668 (2012).
    Category2012
    Read More
  13. 36.

    "Thickness dependence of terahertz emission in InAs and its application to transmissive source", Youngbin Hong, Jihoon Jeong, Sang?Bae Choi,Jin?Dong Song, and Young?Dahl Jho, AIP Conf. Proc. 1399, 511 (2011).
    Category2011
    Read More
  14. 35.

    "Terahertz emission from GaN-based nanophononic structures: the nexus between scale and frequency" H. Jeong and Y. D. Jho, AIP Conf. Proc.1399, 439 (2011).
    Category2011
    Read More
  15. 34.

    ( patent registered in Korea) "광섬유 인듐비소 박막 테라헤르츠파 발생 장치 및 제조 방법 Device for terahertz emitter using thin indium arsenic film optical fiber and manufacturing method thereof", Jaewook Ahn, Kanghee Lee, Minu Yi, Jongseok Lim,Youngdahl Jho, Hong-bin Hong, 등록번호 10-1067368 (등록일자: 2011.09.19). 2
    Category2011
    Read More
  16. 33.

    "Terahertz Waves Emitted from an Optical Fiber", Minwoo Yi, Kanghee Lee, Jongseok Lim, Youngbin Hong, Young-Dahl Jho, and Jaewook Ahn, Optics Express, Vol. 18, Issue 13, pp. 13693-13699 (2010).
    Category2010
    Read More
  17. 32.

    (Invited) "Ultrafast carrier relaxation and diffusion dynamics in ZnO", C. J. Cook, S. Khan, G. D. Sanders, X. Wang, D. H. Reitze,, Y. D. Jho, Y.-W. Heo, J.-M. Erie, D. P. Norton, and C. J. Stanton, Proc. of SPIE Vol. 7603, 760304 pp. 1-14 (2010).
    Category2010
    Read More
  18. 31.

    "Terahertz Communications: Trends and Perspectives 테라헤르츠 통신 관련 기술의 동향과 전망", Young-Dahl Jho and Jongsoo Lee 조영달, 이종수, Physics and High Tech. 물리학과 첨단기술, 2010년 3월호, 20.
    Category2010
    Read More
  19. 30.

    "Cooperative recombination of electron-hole pairs in Semiconductor Quantum Wells under quantizing magnetic felds", Y.D. Jho, X. Wang, J. Kono, D.H Reitze, X.Wei, A.A. Belyanin, V.V. Kocharovsky, Vl.V. Kocharovsky, and G.S. Solomon, Physical Review B 81,155314 (2010).
    Category2010
    Read More
  20. 29.

    "Separating the contribution of mobility among different quantum well subbands", Il-Ho Ahn, G. Hugh Song , and Young-Dahl Jho, Jap. J. Appl. Phys. 49, (1) 014102 (2010).
    Category2010
    Read More
Board Pagination Prev 1 2 3 4 5 Next
/ 5
위로